gdkwindow-win32.c

linux下电话本所依赖的一些图形库

  
  hparent = GDK_WINDOW_HWND (parent);

  window = g_object_new (GDK_TYPE_WINDOW, NULL);
  private = (GdkWindowObject *)window;
  impl = GDK_WINDOW_IMPL_WIN32 (private->impl);
  draw_impl = GDK_DRAWABLE_IMPL_WIN32 (private->impl);
  draw_impl->wrapper = GDK_DRAWABLE (window);

  /* Windows with a foreign parent are treated as if they are children
   * of the root window, except for actual creation.
   */
  if (GDK_WINDOW_TYPE (parent) == GDK_WINDOW_FOREIGN)
    parent = _gdk_parent_root;
  
  private->parent = (GdkWindowObject *)parent;

  private->accept_focus = TRUE;
  private->focus_on_map = TRUE;

  if (attributes_mask & GDK_WA_X)
    private->x = attributes->x;
  else
    private->x = 0;
  
  if (attributes_mask & GDK_WA_Y)
    private->y = attributes->y;
  else if (attributes_mask & GDK_WA_X)
    private->y = 100;		/* ??? We must put it somewhere... */
  else
    private->y = 0;
  
  if (attributes_mask & GDK_WA_VISUAL)
    visual = attributes->visual;
  else
    visual = gdk_visual_get_system ();

  impl->width = (attributes->width > 1) ? (attributes->width) : (1);
  impl->height = (attributes->height > 1) ? (attributes->height) : (1);
  impl->extension_events_selected = FALSE;
  if (attributes->wclass == GDK_INPUT_ONLY)
    {
      /* Backwards compatiblity - we've always ignored
       * attributes->window_type for input-only windows
       * before
       */
      if (GDK_WINDOW_TYPE (parent) == GDK_WINDOW_ROOT)
	private->window_type = GDK_WINDOW_TEMP;
      else
	private->window_type = GDK_WINDOW_CHILD;
    }
  else
    private->window_type = attributes->window_type;

  if (attributes->wclass == GDK_INPUT_OUTPUT)
    {
      dwExStyle = 0;

      private->input_only = FALSE;
      private->depth = visual->depth;
      
      if (attributes_mask & GDK_WA_COLORMAP)
	{
	  draw_impl->colormap = attributes->colormap;
          g_object_ref (attributes->colormap);
        }
      else
	{
	  draw_impl->colormap = gdk_screen_get_system_colormap (screen);
	  g_object_ref (draw_impl->colormap);
	}
    }
  else
    {
      dwExStyle = WS_EX_TRANSPARENT;
      private->depth = 0;
      private->input_only = TRUE;
      draw_impl->colormap = gdk_screen_get_system_colormap (screen);
      g_object_ref (draw_impl->colormap);
      GDK_NOTE (MISC, g_print ("...GDK_INPUT_ONLY, system colormap"));
    }

  switch (private->window_type)
    {
    case GDK_WINDOW_TOPLEVEL:
      dwStyle = WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN;
      hparent = _gdk_root_window;
      offset_x = _gdk_offset_x;
      offset_y = _gdk_offset_y;
      break;

    case GDK_WINDOW_CHILD:
      dwStyle = WS_CHILDWINDOW | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
      break;

    case GDK_WINDOW_DIALOG:
      dwStyle = WS_OVERLAPPED | WS_MINIMIZEBOX | WS_SYSMENU | WS_CAPTION | WS_THICKFRAME | WS_CLIPCHILDREN;
#if 0
      dwExStyle |= WS_EX_TOPMOST; /* //HB: want this? */
#endif
      hparent = _gdk_root_window;
      offset_x = _gdk_offset_x;
      offset_y = _gdk_offset_y;
      break;

    case GDK_WINDOW_TEMP:
      dwStyle = WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
      /* a temp window is not necessarily a top level window */
      dwStyle |= (_gdk_parent_root == parent ? WS_POPUP : WS_CHILDWINDOW);
      dwExStyle |= WS_EX_TOOLWINDOW;
      offset_x = _gdk_offset_x;
      offset_y = _gdk_offset_y;
      break;

    case GDK_WINDOW_ROOT:
      g_error ("cannot make windows of type GDK_WINDOW_ROOT");
      break;

    default:
      g_assert_not_reached ();
    }

  _gdk_window_init_position (GDK_WINDOW (private));

  if (private->window_type != GDK_WINDOW_CHILD)
    {
      rect.left = rect.top = 0;
      rect.right = impl->position_info.width;
      rect.bottom = impl->position_info.height;

      AdjustWindowRectEx (&rect, dwStyle, FALSE, dwExStyle);

      window_width = rect.right - rect.left;
      window_height = rect.bottom - rect.top;
    }
  else
    {
      window_width = impl->position_info.width;
      window_height = impl->position_info.height;
    }

  if (attributes_mask & GDK_WA_TITLE)
    title = attributes->title;
  else
    title = get_default_title ();
  if (!title || !*title)
    title = "GDK client window";

  private->event_mask = GDK_STRUCTURE_MASK | attributes->event_mask;
      
  if (private->parent)
    private->parent->children = g_list_prepend (private->parent->children, window);

  klass = RegisterGdkClass (private->window_type);

  mbtitle = g_locale_from_utf8 (title, -1, NULL, NULL, NULL);
  
  {
  HWND hwndNew =
    CreateWindowEx (dwExStyle,
		    MAKEINTRESOURCE(klass),
		    mbtitle,
		    dwStyle,
		    ((attributes_mask & GDK_WA_X) ?
		     impl->position_info.x - offset_x: CW_USEDEFAULT),
		    impl->position_info.y - offset_y, 
		    window_width, window_height,
		    hparent,
		    NULL,
		    _gdk_app_hmodule,
		    window);
  if (GDK_WINDOW_HWND (window) != hwndNew)
    {
      g_warning("gdk_window_new: gdk_event_translate::WM_CREATE (%p, %p) HWND mismatch.",
		GDK_WINDOW_HWND (window),
		hwndNew);

      /* HB: IHMO due to a race condition the handle was increased by
       * one, which causes much trouble. Because I can't find the 
       * real bug, try to workaround it ...
       * To reproduce: compile with MSVC 5, DEBUG=1
       */
# if 0
      gdk_win32_handle_table_remove (GDK_WINDOW_HWND (window));
      GDK_WINDOW_HWND (window) = hwndNew;
      gdk_win32_handle_table_insert (&GDK_WINDOW_HWND (window), window);
# else
      /* the old behaviour, but with warning */
      draw_impl->handle = hwndNew;
# endif

    }
  }
  g_object_ref (window);
  gdk_win32_handle_table_insert (&GDK_WINDOW_HWND (window), window);

  GDK_NOTE (MISC, g_print ("... \"%s\" %dx%d@+%d+%d %p = %p\n",
			   mbtitle,
			   window_width, window_height,
			   ((attributes_mask & GDK_WA_X) ?
			    impl->position_info.x - offset_x: CW_USEDEFAULT),
			   impl->position_info.y - offset_y, 
			   hparent,
			   GDK_WINDOW_HWND (window)));

  g_free (mbtitle);

  if (draw_impl->handle == NULL)
    {
      WIN32_API_FAILED ("CreateWindowEx");
      g_object_unref (window);
      return NULL;
    }

  if (!from_set_skip_taskbar_hint && private->window_type == GDK_WINDOW_TEMP)
    gdk_window_set_skip_taskbar_hint (window, TRUE);

  gdk_window_set_cursor (window, ((attributes_mask & GDK_WA_CURSOR) ?
				  (attributes->cursor) :
				  NULL));

  return window;
}

GdkWindow*
gdk_window_new (GdkWindow     *parent,
		GdkWindowAttr *attributes,
		gint           attributes_mask)
{
  return gdk_window_new_internal (parent, attributes, attributes_mask, FALSE);
}

GdkWindow *
gdk_window_foreign_new_for_display (GdkDisplay      *display,
                                    GdkNativeWindow  anid)
{
  GdkWindow *window;
  GdkWindowObject *private;
  GdkWindowImplWin32 *impl;
  GdkDrawableImplWin32 *draw_impl;

  HANDLE parent;
  RECT rect;
  POINT point;

  g_return_val_if_fail (display == gdk_display_get_default (), NULL);

  window = g_object_new (GDK_TYPE_WINDOW, NULL);
  private = (GdkWindowObject *)window;
  impl = GDK_WINDOW_IMPL_WIN32 (private->impl);
  draw_impl = GDK_DRAWABLE_IMPL_WIN32 (private->impl);
  draw_impl->wrapper = GDK_DRAWABLE (window);
  parent = GetParent ((HWND)anid);
  
  private->parent = gdk_win32_handle_table_lookup ((GdkNativeWindow) parent);
  if (!private->parent || GDK_WINDOW_TYPE (private->parent) == GDK_WINDOW_FOREIGN)
    private->parent = (GdkWindowObject *)_gdk_parent_root;
  
  private->parent->children = g_list_prepend (private->parent->children, window);

  draw_impl->handle = (HWND) anid;
  GetClientRect ((HWND) anid, &rect);
  point.x = rect.left;
  point.y = rect.right;
  ClientToScreen ((HWND) anid, &point);
  if (parent != _gdk_root_window)
    ScreenToClient (parent, &point);
  private->x = point.x;
  private->y = point.y;
  impl->width = rect.right - rect.left;
  impl->height = rect.bottom - rect.top;
  private->window_type = GDK_WINDOW_FOREIGN;
  private->destroyed = FALSE;
  private->event_mask = GDK_ALL_EVENTS_MASK; /* XXX */
  if (IsWindowVisible ((HWND) anid))
    private->state &= (~GDK_WINDOW_STATE_WITHDRAWN);
  else
    private->state |= GDK_WINDOW_STATE_WITHDRAWN;
  if (GetWindowLong ((HWND)anid, GWL_EXSTYLE) & WS_EX_TOPMOST)
    private->state |= GDK_WINDOW_STATE_ABOVE;
  else
    private->state &= (~GDK_WINDOW_STATE_ABOVE);
  private->state &= (~GDK_WINDOW_STATE_BELOW);

  private->depth = gdk_visual_get_system ()->depth;

  _gdk_window_init_position (GDK_WINDOW (private));

  g_object_ref (window);
  gdk_win32_handle_table_insert (&GDK_WINDOW_HWND (window), window);

  return window;
}

GdkWindow*
gdk_window_lookup (GdkNativeWindow hwnd)
{
  return (GdkWindow*) gdk_win32_handle_table_lookup (hwnd); 
}

void
_gdk_windowing_window_destroy (GdkWindow *window,
			       gboolean   recursing,
			       gboolean   foreign_destroy)
{
  GdkWindowObject *private = (GdkWindowObject *)window;

  g_return_if_fail (GDK_IS_WINDOW (window));
  
  GDK_NOTE (MISC, g_print ("_gdk_windowing_window_destroy: %p\n",
			   GDK_WINDOW_HWND (window)));

  if (private->extension_events != 0)
    _gdk_input_window_destroy (window);


  if (!recursing && !foreign_destroy)
    {
      private->destroyed = TRUE;
      DestroyWindow (GDK_WINDOW_HWND (window));
    }
  gdk_win32_handle_table_remove (GDK_WINDOW_HWND (window));
}

void
_gdk_windowing_window_destroy_foreign (GdkWindow *window)
{
  /* It's somebody else's window, but in our hierarchy,
   * so reparent it to the root window, and then call
   * DestroyWindow() on it.
   */
  gdk_window_hide (window);
  gdk_window_reparent (window, NULL, 0, 0);
  
  /* Is this too drastic? Many (most?) applications
   * quit if any window receives WM_QUIT I think.
   * OTOH, I don't think foreign windows are much
   * used, so the question is maybe academic.
   */
  PostMessage (GDK_WINDOW_HWND (window), WM_QUIT, 0, 0);
}

/* This function is called when the window really gone.
 */
void
gdk_window_destroy_notify (GdkWindow *window)
{
  g_return_if_fail (window != NULL);
  g_return_if_fail (GDK_IS_WINDOW (window));

  GDK_NOTE (EVENTS,
	    g_print ("gdk_window_destroy_notify: %p%s\n",
		     GDK_WINDOW_HWND (window),
		     (GDK_WINDOW_DESTROYED (window) ? " (destroyed)" : "")));

  if (!GDK_WINDOW_DESTROYED (window))
    {
      if (GDK_WINDOW_TYPE(window) != GDK_WINDOW_FOREIGN)
	g_warning ("window %p unexpectedly destroyed",
		   GDK_WINDOW_HWND (window));

      _gdk_window_destroy (window, TRUE);
    }
  
  gdk_win32_handle_table_remove (GDK_WINDOW_HWND (window));
  g_object_unref (window);
}

static void
get_outer_rect (GdkWindow *window,
		gint       width,
		gint       height,
		RECT      *rect)
{
  LONG style, exstyle;
      
  style = GetWindowLong (GDK_WINDOW_HWND (window), GWL_STYLE);
  exstyle = GetWindowLong (GDK_WINDOW_HWND (window), GWL_EXSTYLE);
      
  rect->left = rect->top = 0;
  rect->right = width;
  rect->bottom = height;
      
  API_CALL (AdjustWindowRectEx, (rect, style, FALSE, exstyle));
}

static void
adjust_for_gravity_hints (GdkWindowImplWin32 *impl,
			  RECT               *outer_rect,
			  gint		     *x,
			  gint		     *y)
{
  if (impl->hint_flags & GDK_HINT_WIN_GRAVITY)
    {
      gint orig_x = *x, orig_y = *y;

      switch (impl->hints.win_gravity)
	{
	case GDK_GRAVITY_NORTH:
	case GDK_GRAVITY_CENTER:
	case GDK_GRAVITY_SOUTH:
	  *x -= (outer_rect->right - outer_rect->left) / 2;
	  *x += impl->width / 2;
	  break;
	      
	case GDK_GRAVITY_SOUTH_EAST:
	case GDK_GRAVITY_EAST:
	case GDK_GRAVITY_NORTH_EAST:
	  *x -= outer_rect->right - outer_rect->left;
	  *x += impl->width;
	  break;

	case GDK_GRAVITY_STATIC:
	  *x += outer_rect->left;
	  break;

	default:
	  break;
	}

      switch (impl->hints.win_gravity)
	{
	case GDK_GRAVITY_WEST:
	case GDK_GRAVITY_CENTER:
	case GDK_GRAVITY_EAST:
	  *y -= (outer_rect->bottom - outer_rect->top) / 2;
	  *y += impl->height / 2;
	  break;

	case GDK_GRAVITY_SOUTH_WEST:
	case GDK_GRAVITY_SOUTH:
	case GDK_GRAVITY_SOUTH_EAST:
	  *y -= outer_rect->bottom - outer_rect->top;
	  *y += impl->height;
	  break;

	case GDK_GRAVITY_STATIC:
	  *y += outer_rect->top;
	  break;

	default:
	  break;
	}
      GDK_NOTE (MISC,
		(orig_x != *x || orig_y != *y) ?
		g_print ("adjust_for_gravity_hints: x: %d->%d, y: %d->%d\n",
			 orig_x, *x, orig_y, *y)
		  : (void) 0);
    }
}

static void
show_window_internal (GdkWindow *window,
                      gboolean   raise,
		      gboolean   deiconify)
{
  GdkWindowObject *private;
  HWND old_active_window;
  gboolean focus_on_map = TRUE;

  private = (GdkWindowObject *) window;

  if (private->destroyed)
    return;

  GDK_NOTE (MISC, g_print ("show_window_internal: %p: %s%s%s\n",
			   GDK_WINDOW_HWND (window),
			   _gdk_win32_window_state_to_string (private->state),
			   (raise ? " raise" : ""),
			   (deiconify ? " deiconify" : "")));
  
  /* If asked to show (not deiconify) an withdrawn and iconified
   * window, do that.
   */
  if (!deiconify &&
      !GDK_WINDOW_IS_MAPPED (window) &&
      (private->state & GDK_WINDOW_STATE_ICONIFIED))
    {	
      ShowWindow (GDK_WINDOW_HWND (window), SW_MINIMIZE);
      return;
    }
  
  /* If asked to just show an iconified window, do nothing. */
  if (!deiconify && (private->state & GDK_WINDOW_STATE_ICONIFIED))
    return;
  
  /* If asked to deiconify an already noniconified window, do
   * nothing. (Especially, don't cause the window to rise and
   * activate. There are different calls for that.)
   */
  if (deiconify && !(private->state & GDK_WINDOW_STATE_ICONIFIED))
    return;